Starting device for explosive-motors.



PATENTED JULY 17; 1906.

v T. B. JEFFR Y. STARTING DEVICE IE'OR-EXPLOSIVE MOTORS.

APPLICATION FILED JUNE 10, 1901.

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Tiwman' 3 /fe -N0.- 826,25L". PATENTED'JULY I7, 1906.

' T. B. JEPPBRY.

STARTING DEVICE FOR EXPLOSIVE MOTORS. APPLICATION FILED JUNE 10, 1901.

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DQineAskesd 1511/676607'3 45 tar-shaft B exten UNTTED' STATES ATENTOFFICE.

.THOMASB'LJEFFERYYQF KENOSHA, WISCONSIN.

STARTING DEVICE FOR EXPLOSIVE-MOTORS.

Specification of Letters Patent.

Patented July17, 1906.

A w-flinafion fil d June 10, 1901. Serial No. 63.317.

nosha, in the county of Kenosha and Statho f Wisconsin, haveiinventedcertain new and puseful Improvementsin Starting Devices forExplosiveMotors, of which the following is a specification, referencebeing had to the accompanying drawings, forming a part'thereof.

The purpose-of this invention is to provide means for insuring that atthe time ofstartindg an explosive-motor the igniter shall be so a justedthat the first explosion shall occur atproper stage to produce forwardand not re-' versed motion.

7 It consists of the features and details of construction set out in theclaims. I In the drawings, Figure'l is a vertical section transverselywith, respect to a fore-andaft main crank-shaft of the. motor of avehicle having such motor provided with my in- .y ention. Fig. 2 is asection at the line 2 2 on 1. Fi ,3 is a detail, partly sectional, inthe vertica planeof the axis of the engine crank-shaft, showing amodified form of my invention, Fig. 4 is a detail elevation similar toFig.2, but not including the main crank-shaft, showing a furthermodification of my invention.

In the .drawingsI have shown my invention applied to the motor of avehicle in which the main crank-shaft of the motor extends Ilongitudinally fore and aft with respect to the vehicle. It will beobvious to any one skilled in the art that slight changes, which anymechanic will readily make, will adapt it to'a vehicle in which the mainc'rank-shaf extends transversely.

A represents the main crank-shaft of the motor; B, a counter-shaft inconvenient p0- sition to be rotated by a proper crank-han- -dle andderiving motion from the main crankshaft by means of the chair; 0,passing around the sprocket-wheels a and b on the two shafts,respectivel' cling through and ournaled in a board D, which may becalled the controller-supporting board, on which there is mounted thecontroller E for an electric i nifter. This element is of the form whichis fully shown and described in my application, SerialNo. 3,956, filedFebruary 5, 1900, and

need not be further described herein except to say that the lever-arm Eextends from a ,late e which is adjustable b means of said ever-armabout the axis of I have shown the coun retreating stroke and movementin the op-' has the effect to retard or deposite direction lay thesparking.

F is a lever-arm mounted on the board D and connected by the link G tothe adjustingarm E of the igniter controller. A spring is providedoperating upon the lever-arm tending to hold it inthe position shown inFig. 2, at which the pin g, by means of which the link G engages andactuates the arm E is in position to allow the arm E its full range ofadjusting movement in both directions.

On the counter-shaft B are clutch-teeth B B adapted to be engaged by thehub H of the handle H, which is provided for the use of the operator instartin the motor by hand, said hub having proper orm for engagementwithsuch clutch to rotat'c-it'in the proper direction for startin the motor,but adapted to be forced out 0 en agement by the incline of the engagingclutc -teeth when the motor is driven faster than the handle is beinturned, the mode of use, as well understoo being to operate the motor byhand by means. of the handle through one cycle in order to initiate theproper action, which will be continued automatically by the ex losion atproper time in the next and succee ing cycles, the handle beingwithdrawn from engagement as soon as the automatic action of the motorcommences. The hub of the handle-H is tapered, widening back fromthelever F to crowd the latter away-from the shaft when the handle isforced into engagement for operating the shaft. The movement given tothe lever F- b this action is sufficient to cause the link G, y means ofthe pin gthereon, to move the adjusting arm E of the igniter-controllerto the position shown in dotted line in Fig. 2, which is the position atwhich ignition is delayed, so asnot to occur until after the piston hasstarted back in its retreat after its compressing stroke, so thatanexplosion occurring at that time is certain not to produce rotation inreversed direction. As soon as the action of the engine is commenced andthe handle is forced out of engagement or is voluntarily removed the..device to by the operator, the spring f returns the le- ,g greases verFto its original position, carrying the pin 9 on the link G out of theway of the adjustingarm E of the igniter-controller, leaving that armfree to move to any position within its range of adjustment obedient toanymeans which may be provided for efleotin such adjustmentautomatically or at 1. Such means are notherein shown, no specific meansfor that purpose being essential to the present 10 invention.

In Fig; 3 I have shown a modificationof this device. In this form I haveshown the operating-handle arranged to be applied directly to the enginecrank-shaft instead of to I 5 a counter-shaft, and the lever F, by whichthe adjusting-arm of the igniter-controlleris operated, is pivoted so asto swing in a plane radial to the shaft instead of transversely thereto,as in the principal form shown, said to lever having an aperture Fthrough which the crank-sh aft extends and outside of which said shaftis adapted to receive the operatinghandle. In this form theigniter-eontroller is mounted on a horizontal support instead 5 of uponthe vertical board, as in the other form, andthe end of the lever Fextends uppast the finger E of said-controller and is arranged to forcesaid finger. to the position for delayed i nition when the handle a liedto the end 0 the main crank-shaft colh es with the lever and forces itback on the shaft in order to admit the handle. A spring f is provided,as in the other construction, to hold the lever F normally in positionat which it will not obstruct the adjusting movement of .the finger E. I

A further modification may be understood from Fig. 4, in which the leverF, operating in the same manner as the lever F in Fig. 2 in 40 the firstform, so far as its action upon the adjustin finger of theigniter-controller is concerne operates to entirely obstruct the end ofthe counter-shaft, so as to prevent the handle from obtaining access tothe shaft until said lever has been swung out of obstructing position bythe operator. Thedif'ference between this form and the other twoismerely that the movement ofthe lever out of osi- 2 tion at which itprevents engagement 0 the so handle with the shaft is not automatic, asin the first twov forms. I consider the automatic form of devicesomewhat preferable, and of the three forms that first described has aslight additional advantage over the others, in that it permits thelever F to be utilized as a key to hold the handlein engaged position onthe shaft until it is either withdrawn voluntarily by the -operator orforced out of engagement by the more rapid 6o rotation of the shaft,said eX edient consisting in providing a groove 2 on the hub 'of thehandle, into which the edge of the lever is adapted to take when thehandle is forced into engagement. The side of the groove and thecorresponding portions of the proper handle.

edge of the lever are beveled, so that the engagement Will not preventthe Withdrawal of the handle by the operator or its disengagement fromthe'shaft by the automatic action of the clutch. It will be evident thatthis invention is not limited to use with a crank for a startinghandlenor to use with a hand-operated startin -lever, and by the word handle,applie to the crank shown in the principal figures, I do not limit themto exc ude any form of lever which may be moved by the operator ormotorman for starting the engine; nor by the term lever do I' intend toexclude a wheel such as shown in dotted line in Fig. 1., (marked H,)which may be substituted for the crank-handle. In Fig.5 I have shown aform of handle it for starting which ma at all times remain on theshaft, but which is forced out of operative engagement therewith byrotation of the shaft after the. automatic action commences, theengaging stud a acting on the s iral incline h of the hub of the-wheeland orcin the latter longitudinally on the shaft unti the stud clearsthe engaging shoulder h and thereafterrevolves without encountering oractuating the In'thisfform I have also shown the lever F actuated not bythe movement of the handle, which effects operative engagement of thelatter with the shaft, but by the rotary movement of the handle'whileengaged, the cam rotrusion h on the hub of the handwheel being locatedat such part of the circumference relatively to the engaging shoulder has to commence to force the lever out 1 and adjust theigniter-controller to. position for delayed ignition and at proper timein the first revolution to forestall ignition.

I claim 1. The combination with a shaft-of an ex plosive-engine by whoserotation the engine may be started andan electric circuit-breakermounted apart from said shaft jand movable for varying the time. ofignition, and a sparking device connected with said circuit-breaker of amovable guard for the shaft which at normal position obstructs theoperative engagement therewith of a turning device, and connections fromsaid guard to the movable electric circuit-breaker.

2.. The combination witha shaft of an explosive-engine by-whose rotationthe engine may be started and an electric circuit-breaker mounted apartfrom said shaft and movable 12o,

to vary the time of ignition, and a sparking device connected with saidcircuit-breaker, of a movable guard for said shaftmeans for holding itnormally in position to obstruct the movement of a turning device tooperative position for turning the shaft, and connections from saidmovable guard to said movable electrio circuit-breaker, the relativeposition and connections of said two connected movable elements beingsuch-that the move-- ment of the guard out of obstructing positionadjusts the circuit-breaker for affecting the time of ignition.

3. The combination with a shaft of an explosive-engine by whose rotationthe engine may be started and an electric circuit-breaker mounted apartfrom said shaft and movable to vary the time of i nition and a sparkingdevice connected wit said circuit-breaker, of a movable, guard for saidshaft means for holding the'guard normally in position to obstruct theoperative engagement of a turning device with the shaft, and adapted tobe forced by the latter out of such obstructing gosition intheintroduction of the turning evice to such operative osition, andconnections from said mova le guardto said movable circuit-breaker.

v 4. The combination with a shaft of 'an explosive-engine and anelectric circuit-breaker, movable to vary the time of ignition, and asparking device connected with the latter, of a guard arranged to movetransversely of the shaft and stop ed laterally near the same; means forho ding it yieldingly in such sto ped position, said guard being ada tedto e crowded laterally away from the s aft by the engagement of aturning devicewith the latter, and connections from said guard to saidmovable circuit-breaker for adjusting the latter by the move-ment of theformer from obstructing position.-

5. In an explosive-motor, in combination with a shaft by whose rotationthe motor may be started; a device mounted apart from said shaft, forcontrolling the time of ignition in the cycle of the engines action;means for rotating the starting-shaft; a lever and connections by whichit moves said controlling device to vary the time of ignition, saidlever extending inproximity to the starting-shaft in position to beencountered and moved by the means for rotating the shaftin the movementof said means toward tive engagement with the s aft.

6. In an eX losive-motor, in combination with a shaft y whose rotationthe motor maybe started; a device mounted apart from said shaft forcontrolling the. time of ignition in the cycle of the motors action; ahandle for rotating saidshaf t; a lever and connections by which itmoves said controlling device to vary the "time of ignition, s'aid leverextending in position obstructing the o era: tive engagement of thehandle with the s aft, and arranged-to adjust the controller for 'af--fecting the time of ignition by movement out of such obstructiveposition.

7 In an ex losive-motor in combination with-a shaft y whoserotation themotor may be started a device mounted apart from said shaft forcontrolling the time of ignition in the cycle of the motors action; ahandle for rotating said shaft; a lever andconnections by which it movessaid controlling deposition of opera-- vice to vary the time ofignition, said lever "extending in'proximity to the starting-shaft, andat all points corresponding to advanced ignition obstructing theengagement of the I handle with the shaft; said lever being movable atwill from such obstructing position to position corresponding to delayedlgnition. 8. In anexplosive-motor, in combination with a shaftby whichthe motor may be started; a device mounted apart from said shaft, whichcontrols the time'of ignition in the cycle of the motors action; ahandle for operating such shaft; a lever and connections by which itmoves the controlling device to 'varythe time of ignition, said leverextending in adapte to stand in position obstructin the o erativeengagement of the handle wit the s aft, said lever andhandle beingrelatively constructed so'that the latter forces the former'out ofobstructing position in coming into engagement with the shaft, the leverbeing arranged and connected so that] such forced movement of the latteradjusts the controller for affecting the time of ignition.

9. In an explosive-motor, in combination with a controller for theigniter, adjustable to vary the time of ignition in the c cle of theengines movement, a shaft by W o se rotation the engine may be started;a handle for operating such shaft; an element arranged to proximity tothe starting-shaft, and

such movement of said element away-from the shaft operates the adjustingmeans of the a igniter-controller to s'etthe latter at position foraffectingthe time of.ignition. v

IO. In an explosive-motor, 1n combination with the controller for theigniter, adjustableto vary the time of ignition in the cycle of theengines movement, a shaft by whose rotation the engine may be started;an element arranged to move transverselyof the shaft and stopped nearthe same; and means tending to hold it yieldingly toward the shaft, saidelement being located in the path of the starting-handle so as to becrowded away.

from the shaft as-said handle is engaged by the latter; and connectionsfrom said ele-' ment to the means for adjusting the ignitercontroller,by which such-movement away from the shaft sets the controller inposition for affecting the time of ignition; the handle .having ashoulder back of which said element becomes engaged when the handleisengaged with the shaft,-whereby such shoulder tends to resistdisengagement of the handle. 11. In an explosive-motor, in combinationwith a controller forthe igniter, adjustable to vary the timeof ignitionin the cycle of. the

engines movement, a shaft by whose rotation the engine may be started; ahandle for;

operating such shaft having its hub which passes onto the shaft adaptedto engage the latter only when rotating in one direction; a leverpivoted so as to swing transversely of the shaft, and a sprin tending tohold it theretoward, whereby t e lever is located in the path of thestarting-handle so'as to be crowded away from the shaft by theapplication of the handle thereto; means by which the lever'engages thehandle to retain it on the shaft; and connections from the lever bywhich'this movement away from the shaft. ad usts the igniter-controllerto position affectmg the time of ignition.

. .12. In an explosive-motor, in combinationwith a controller for theigniter, adjustable to vary the time of ignition in the cycle of theengines movement, a shaft by whose rota tion the engine may be started;a handle for operating such shaft, having its hub which passes onto theshaft adapted to engage the latter only when rotating in one direction;a lever pivoted so as to swing transversely of the shaft and a springtending to hold it theretoward; the handle and said lever beingrelatively formed so that the introductionof the handle to position ofenga ement with the shaft crowds the lever away om the latter, and thehandle havin a groove with which the lever-is adapte to' be engaged whenthe handleis engaged with the shaft,

whereby said lever serves to retain the handie in such engagement, andconnections from the lever by which its movement away passed onto thestarting-shaft and provided at the end with ratchet-teeth for engagingtheshaft for-rotation in one direction, and a peripheral groove back ofthe ratchet-teeth for engagement of a retaining device, .theratchet-toothed end of the hub being conically tapered, widening fromthe points of the teeth back toward the groove to adapt it to enter pastsuch retaining device.

15. In an explosive-motor, in combination with a shaft by whose rotationthe motor may be started, a device mounted apart from said shaft forcontrolling the time of ignition in the cycle of the engines action; a.lever and connections by which it moves said controlling device to varythe time of ignition, said lever extending in proximity to thestarting-shaft in position to be encountered and moved by means forrotating the shaft in the movement of said means toward position ofoperative engagement with the shaft.

16. In an explosive-motor, in combination with a shaft by whose rotationthe motor may be started; a device apart from said shaft for controllingthe time of i nition in the cycle 'ofthe motors action; a ever andconnections by which it moves such cohtrolling device to vary the timeof ignition, said lever extending in aposition obstructing the operativeen agement ofthe'starting-handle,

and arrange to adjust the controller for af- .shaft, and at sfil pointscorresponding to a vanced ignition obstructing the engagement of thestarting-handle with the shaft, said lever being movable at will fromsuch obstructing position to position corresponding to delayedi nition.

18. 11 an BXPIOSIVGrIIlOtOI', in combination with a shaft by which themotor may be started, a device apart from such shaft which controls thetime of ignition in the cycle of the motors action; a lever andconnections by which it moves the controlling device to vary the time ofignition, said lever extending in proximity to the, starting-shaft andadapte to stand in position obstructing the operative engagement of thestarting-handle, and adapted to be forced by the latter out ofobstructing position, the lever being arranged and connected so thatsuch forced movement adjusts the controller for affecting the time ofignition.

19. In an explosive-motor, in combination with a controller for theigniter adjustable to,vary the time of ignition in the cycle of themotors movement, a shaft by whose rotation the motor may be started; anelement arranged to move transversely of the shaft, and laterall stoppednear the same, and adapted to e crowded laterally away from the shaft bythe engageemnt of the startinghandle with the latter, and connections bywhich such movement of said element away from'the shaft operates theadjusting means of the igniter-controller to set the latter at positionfor afiecting the time of ignition.

In testimony whereof- I have hereunto set my hand, at Kenosha,Wisconsin, in the presence of two witnesses, this 5th day of June, A. D.1901.

. THOS. B. JEFFERY.

In presence of CHAS. S. BURTON, ADNA H. BOWE. Jr.

